Sodium Sulfite

Name:Anhydrous Sodium Sulfite( Industrial Grade) Molecule formula：Na2SO3 Physical and chemical properties: White crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9 – 9.5; The highest water solubility is about 28% with temperature at 33.4°C. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633(15.4°C), Refractive Index: 1.565; Molecular Weight: 126.04.

Item

Value

Top-grade

First grade

Qualified product

sodium sulfite(Na2SO3)%≥

98

97

96

Fe,%≤

0.003

0.003

0.005

water-Insoluble%≤

0.01

0.02

0.03

Free alkali(as Na2CO3),%≤

0.001

0.1

0.4

Sulfate(as Na2SO4),%≤

1.2

2.5

2.5

Chloride(as NaCl),%≤

0.003

0.1

0.1

Application: It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc. Package： The package is 25 kg in white plastic bag with a weaving bag outside.

Company Strength

1, The production center of 30000 square meters, new equipment, optimized production technology, rapid delivery for customers.

2, The company implemented ISO9001 system management, pay attention to process control, high standards, high requirements, finished product factory 100% fine inspection, for the customer to create international quality products.

3, The company in accordance with the requirements of customers, can produce different specifications of anhydrous sodium sulfite standards, quality reached the international standard